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门式起重机的安全用电要求分析

远华起重 时间:2012-12-03 点击:1185次

摘要:门式起重机的安全用电要求分析....……
(一)电动机
(a) motor
门式起重机的电动机的安装必须平稳、牢固,电动机应使用全闭型的,使带电部分不致于被操作者所触及,也防止灰尘等杂物) 落入,其绝缘电阻以及在运行时的允许温升,应符合电器安全规程的有关规定。如不符合规定,操作者必须采取防护措施和建议改进。
Motor gantry crane installation must be smooth, firm, the motor should be used fully closed type, the live part not to be touched by the operator, but also to prevent dust and other debris) fall into, the insulation resistance and the permissible temperature rise at run time, shall comply with relevant provisions of electrical safety procedures. If not in conformity with the provisions, the operator must take protective measures and suggestions for improvement.
(二).开关和控制器
(two) the switch and controller.
开关和控制器应符合下列条件:
The switch and controller shall meet the following conditions:
1、使用时动作应平缓,.
1, use the action should be gentle,.
2、应设置明显的安全标志,
2, safety signs should be set obviously,
3,绝缘电阻与允许温升必须符合电器安全规程中的有关规定,操作者要经常检查
3, the insulation resistance and the allowable temperature rise must comply with the relevant safety rules in the electric appliance, the operator should always check
4、起重机应设有总开关,且在起重机钢结构以外设有电源开关,使能在发生紧急事故时迅速切断电源。并在驾驶室内设置紧急开关。如无以上开关,操作者要建议有关部门安装,
4, cranes should be equipped with the switch, and the power switch is arranged outside of the crane steel structure, which can cut off the power supply quickly in the event of an emergency. And in the driver's cab provided emergency switch. If there is no more switch, the operator must suggest the Department concerned to install,
5、起重机的照明、电铃,信号的线路、开关等,二要与动力线路、开关分别装置,以便切断动力电源时,仍有照明电源,
5, the crane lighting, bell, signal lines, switches, two with power lines, respectively, to cut off the power switch device, power supply, there are still lighting power,
6、驾驶室内的配电盘及接触器柜面板,要做好防火安全要求,且应设置防护罩或网。)
Cabinet panel switchboards and contactor 6, cab, to make fire safety requirements, and shall be provided with a protective cover or network. )
(三)滑触线(或引入电缆)及其他电器设备安全要求
(three) sliding contact line (or the introduction of cable) and other electrical equipment safety requirements
滑触线或引入电缆要牢固可靠。地下滑触线必须加以防护。地沟盖板须经常检查完好情况及是否漏电。门式起重机内用的导线必须是完好的绝缘线,且加以防护,发现损坏应立即更换。
Sliding contact line or the cable to be solid and reliable. Underground trolley line shall be protected. Trench cover must always check the condition and whether leakage. Gantry crane with wire must be insulated wire intact, and protected, found damaged should be replaced immediately.
(四)接地和接零;    
(four) the ground connection and zero connection;
为防止设备绝缘失效引起漏电事故,对电器设备的外壳、导线、电缆的保护管和起重机的金属结构都应按安全要求作可靠的接地或接零。操作者要经常检查接地或接零灼有效状况。
In order to prevent the equipment insulation failure caused by leakage accidents, metal shell, wires, cables for electrical equipment protection tube and the crane should be according to the safety requirements for reliable grounding or earthing. The operator should always check the grounding of burning the effective condition.

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